CN105472779A - LED display screen indoor wireless communication system based on LiFi technology - Google Patents
LED display screen indoor wireless communication system based on LiFi technology Download PDFInfo
- Publication number
- CN105472779A CN105472779A CN201610062012.6A CN201610062012A CN105472779A CN 105472779 A CN105472779 A CN 105472779A CN 201610062012 A CN201610062012 A CN 201610062012A CN 105472779 A CN105472779 A CN 105472779A
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- signal
- lifi
- led
- led display
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
Abstract
The invention discloses an LED display screen indoor wireless communication system based on LiFi technology The LED display screen indoor wireless communication system comprises indoor LED lamps and LED display screens disposed in the illumination range of the LED lamps. A LiFi optical signal transmitting module is disposed in each of the LED lamps, and a main control circuit, a communication signal detection circuit, a circuit for transceiving wireless signals in various wavebands, and a LiFi optical signal receiving circuit are disposed in each of the LED display screen. Each of the main control circuits is connected with the corresponding communication signal detection circuit, the corresponding circuit for transceiving the wireless signals in various wavebands, and the corresponding LiFi optical signal receiving circuit. Each of the LiFi optical signal transmitting modules is connected with a LiFi wireless communication Internet signal source. Each of the LiFi optical signal transmitting modules of the LED lamps comprises a photoelectric communication device, which comprises an LED driver, an LED lamp bead, a PIN photoelectric diode, and a trans-impedance amplifier. A LiFi base station comprises an optical link, and is used to establish connection between an access end and an Internet end, and can be used for processing the electric signals, receiving and/or transmitting the electric signals.
Description
Technical field
The present invention relates to visible light communication system, specifically for the wireless Internet access of indoor.
Background technology
In prior art, the display screen of computer all adopts LED display; LED display comprises LED matrix; Traditional online computing mode is connected by cable network to realize; Concrete, cable network, by the netting twine mouth of host computer and the network interface card swap data of computer, realizes the exchanges data with the Internet; The wiring of cable network is comparatively complicated on the one hand, on the other hand, and the existing wireless Internet access of instant employing, but the speed of getting online without being tethered to a cable is unstable, and this causes inconvenience for current volume of transmitted data.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, discloses the LED display indoor wireless communication system based on LiFi technology, and it can make indoor computer realize reliably, at a high speed, easily getting online without being tethered to a cable.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
Based on the LED display indoor wireless communication system of LiFi technology, comprise and be distributed in indoor LED, be placed in the LED display in the illumination range of LED; The built-in LiFi optical emitting module of described LED, the built-in governor circuit of described LED display, communication signal testing circuit, each wave band wireless signal transmission circuit and LiFi optical signal receiving circuit; Described governor circuit is connected with LiFi optical signal receiving circuit with communication signal testing circuit, each wave band wireless signal receiving circuit respectively, and described LiFi optical emitting module is connected with LiFi wireless telecommunications internet signal source;
Open when described communication signal testing circuit recognizes LED, when LiFi optical emitting module launches LiFi light signal, described LED display is connected to LiFi wireless telecommunications internet signal source by LiFi optical signal receiving circuit and described LED;
The LiFi optical emitting module of described LED comprises photoelectric communication device; Described photoelectric communication device comprises:
-LED driver: connect LiFi base station by transfer bus, exports control signal;
-LED lamp bead: the control signal receiving LED driver, sends light signal according to signal of telecommunication particular sequence pattern;
-PIN photodiode: receiving optical signals, is converted to the signal of telecommunication;
-trans-impedance amplifier: connect LiFi base station by transfer bus, receives the signal of telecommunication of PIN photodiode, exports LiFi base station to;
Described LiFi base station comprises optical fiber link, and described LiFi base station is for setting up the connection of access end and the Internet end, and the process signal of telecommunication, receives and/or send the signal of telecommunication.
The preferred embodiment of the present invention and further improvement as follows:
(1) when described communication signal testing circuit can't detect LiFi light signal but the wireless access signal of external network detected, described LED display is connected to the Internet by each wave band wireless signal transmission circuit in radio wave mode;
Described each wave band wireless signal transmission circuit, wireless signal transmitting-receiving mode is wifi signal.
The built-in governor circuit of described LED display, is provided with CPU LiFi light signal being carried out to noise reduction process; Described LiFi optical emitting module, built-in LiFi optical signal modulation circuit.
(2) described LED is provided with brightness regulating switch, inside has the brightness regulation shelves of bright lamp, concealed light.
(3) described LED display is provided with fixation and recognition module, described fixation and recognition module is by the photoelectric communication device communication of transmitting terminal and described LED; Described transmitting terminal comprises the modulation module, signal conversion module and the LED light source module that comprise and connecting successively, modulation module obtains modulation signal after the identify label of LED display being modulated, described modulation signal is converted to LED dim signal by signal conversion module, after LED light source module receives described LED dim signal, with certain frequency scintillation; Flash signal is received by the PIN photodiode of described LED.
(4) described optical fiber link, comprises signal transmitting path and Signal reception path; Described photoelectric communication device and LiFi base station, in optical communication process, use IEEE802.15.7 protocol definition physical layer and medium access control layer.
(5) described LED display is connected with host computer communication; Described communication connected mode comprises RS232 communication connected mode.
Beneficial effect of the present invention is:
The invention discloses the LED display indoor wireless communication system based on LiFi technology, it sends light signal by LED, by realizing visible ray communication after LED display receiving optical signals; Because the routine use of LED display is all generally which makes the occupation mode of computer constant in light coverage, but achieve at a high speed reliable and get online without being tethered to a cable easily;
The built-in governor circuit of LED display of the present invention, communication signal testing circuit, each wave band wireless signal transmission circuit and LiFi optical signal receiving circuit; Described governor circuit is connected with LiFi optical signal receiving circuit with communication signal testing circuit, each wave band wireless signal receiving circuit respectively, and described LiFi optical emitting module is connected with LiFi wireless telecommunications internet signal source;
Open when described communication signal testing circuit recognizes LED, when LiFi optical emitting module launches LiFi light signal, described LED display is connected to LiFi wireless telecommunications internet signal source by LiFi optical signal receiving circuit and described LED;
The LiFi optical emitting module of described LED comprises photoelectric communication device; LiFi base station of the present invention, as relaying, can realize the access of the Internet, distributed management, is convenient to very much expansion, adopts base station form can ensure the stable of signal as relaying simultaneously;
Photoelectric communication device of the present invention can realize sending of light signal and receive, and communication is carried out in final and LiFi base station, realizes the access of the Internet.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
As shown in Figure 1, it illustrates the specific embodiment of the present invention,
Based on the LED display indoor wireless communication system of LiFi technology, comprise and be distributed in indoor LED, be placed in the LED display in the illumination range of LED; The built-in LiFi optical emitting module of described LED, the built-in governor circuit of described LED display, communication signal testing circuit, each wave band wireless signal transmission circuit and LiFi optical signal receiving circuit; Described governor circuit is connected with LiFi optical signal receiving circuit with communication signal testing circuit, each wave band wireless signal receiving circuit respectively, and described LiFi optical emitting module is connected with LiFi wireless telecommunications internet signal source;
Open when described communication signal testing circuit recognizes LED, when LiFi optical emitting module launches LiFi light signal, described LED display is connected to LiFi wireless telecommunications internet signal source by LiFi optical signal receiving circuit and described LED;
The LiFi optical emitting module of described LED comprises photoelectric communication device; Described photoelectric communication device comprises:
-LED driver: connect LiFi base station by transfer bus, exports control signal;
-LED lamp bead: the control signal receiving LED driver, sends light signal according to signal of telecommunication particular sequence pattern;
-PIN photodiode: receiving optical signals, is converted to the signal of telecommunication;
-trans-impedance amplifier: connect LiFi base station by transfer bus, receives the signal of telecommunication of PIN photodiode, exports LiFi base station to;
Described LiFi base station comprises optical fiber link, and described LiFi base station is for setting up the connection of access end and the Internet end, and the process signal of telecommunication, receives and/or send the signal of telecommunication.
Preferably, as shown in the figure: when described communication signal testing circuit can't detect LiFi light signal but the wireless access signal of external network detected, described LED display is connected to the Internet by each wave band wireless signal transmission circuit in radio wave mode;
Described each wave band wireless signal transmission circuit, wireless signal transmitting-receiving mode is wifi signal.The present invention when not having visible light signal, and when there is wireless network (wifi), can realize the access of wireless network.
The built-in governor circuit of described LED display, is provided with CPU LiFi light signal being carried out to noise reduction process; Described LiFi optical emitting module, built-in LiFi optical signal modulation circuit.
Preferably, as shown in the figure: described LED is provided with brightness regulating switch, the brightness regulation shelves of bright lamp, concealed light are inside had.When LED is set to bright lamp brightness shelves, its light-source brightness is the visible brightness of human eye, and when LED light source is set to concealed light brightness shelves, its light source minimum brightness human eye cannot be perceiveed.The network contributing to realizing not turning on light (human eye discover less than) state keeps.
Preferably, as shown in the figure: described LED display is provided with fixation and recognition module, described fixation and recognition module is by the photoelectric communication device communication of transmitting terminal and described LED; Described transmitting terminal comprises the modulation module, signal conversion module and the LED light source module that comprise and connecting successively, modulation module obtains modulation signal after the identify label of LED display being modulated, described modulation signal is converted to LED dim signal by signal conversion module, after LED light source module receives described LED dim signal, with certain frequency scintillation; Flash signal is received by the PIN photodiode of described LED.The present embodiment realizes transmission to LED display identity information and location by fixation and recognition module and transmitting terminal; Concrete, be similar to and identify IP address information, make still can be identified reliably by the computer of visible ray communication accessing Internet, contribute to distributing authority and usage behavior monitoring.
Preferably, as shown in the figure: described optical fiber link, signal transmitting path and Signal reception path is comprised; Described photoelectric communication device and LiFi base station, in optical communication process, use IEEE802.15.7 protocol definition physical layer and medium access control layer.In optical communication process, use IEEE802.15.7 protocol definition physical layer and medium access control layer.In a kind of specific embodiment, described signal transmitting path, comprises ASIC: at least export two signals of telecommunication, each electrical signal rate is at least greater than 1Gbps/s; Equalizer: connect ASIC by ultrahigh speed Ethernet interface XLAUI, receives the signal of telecommunication; CDR & deserializer: receive the signal of telecommunication after equalizer compensation, carry out clock and data recovery and unstring; Phase compensator: the signal of telecommunication receiving CDR & deserializer, carries out phase-fitting between the dynamic and stalic state signal of telecommunication; Serializer: the signal of telecommunication after the matching of receiving phase compensator, exports serial electric signal; Postemphasis driver: the signal of telecommunication receiving serializer, carries out postemphasising and amplifieroperation, exports the signal of telecommunication; FPGA: connect the driver that postemphasises by physical medium associated layers interface PMD.Described Signal reception path, comprises FPGA: receive the signal of telecommunication that street lamp is uploaded; Equalizer: receive the signal of telecommunication that FPGA sends equalizer in respective signal transmitting path; CDR: receive the signal of telecommunication after equalizer compensation, carry out clock and data recovery; Multiplexer: receive the signal of telecommunication after CDR recovers, export at least two Half Speed signals of telecommunication; Postemphasis driver: the Half Speed signal of telecommunication receiving multiplexer, carries out postemphasising and amplifieroperation; ASIC: connect the driver that postemphasises by ultrahigh speed Ethernet interface XLAUI, at least receives two Half Speed signals of telecommunication.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above; but the invention is not restricted to above-mentioned execution mode; in the ken that those of ordinary skill in the art possess; can also make a variety of changes under the prerequisite not departing from present inventive concept; these changes relate to correlation technique well-known to those skilled in the art, and these all fall into the protection range of patent of the present invention.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.
Should be appreciated that and the invention is not restricted to specific execution mode, scope of the present invention is defined by the following claims.
Claims (6)
1. based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that, comprise and be distributed in indoor LED, be placed in the LED display in the illumination range of LED; The built-in LiFi optical emitting module of described LED, the built-in governor circuit of described LED display, communication signal testing circuit, each wave band wireless signal transmission circuit and LiFi optical signal receiving circuit; Described governor circuit is connected with LiFi optical signal receiving circuit with communication signal testing circuit, each wave band wireless signal receiving circuit respectively, and described LiFi optical emitting module is connected with LiFi wireless telecommunications internet signal source;
Open when described communication signal testing circuit recognizes LED, when LiFi optical emitting module launches LiFi light signal, described LED display is connected to LiFi wireless telecommunications internet signal source by LiFi optical signal receiving circuit and described LED;
The LiFi optical emitting module of described LED comprises photoelectric communication device; Described photoelectric communication device comprises:
-LED driver: connect LiFi base station by transfer bus, exports control signal;
-LED lamp bead: the control signal receiving LED driver, sends light signal according to signal of telecommunication particular sequence pattern;
-PIN photodiode: receiving optical signals, is converted to the signal of telecommunication;
-trans-impedance amplifier: connect LiFi base station by transfer bus, receives the signal of telecommunication of PIN photodiode, exports LiFi base station to;
Described LiFi base station comprises optical fiber link, and described LiFi base station is for setting up the connection of access end and the Internet end, and the process signal of telecommunication, receives and/or send the signal of telecommunication.
2. as claimed in claim 1 based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that: when described communication signal testing circuit can't detect LiFi light signal but the wireless access signal of external network detected, described LED display is connected to the Internet by each wave band wireless signal transmission circuit in radio wave mode;
Described each wave band wireless signal transmission circuit, wireless signal transmitting-receiving mode is wifi signal;
The built-in governor circuit of described LED display, is provided with CPU LiFi light signal being carried out to noise reduction process; Described LiFi optical emitting module, built-in LiFi optical signal modulation circuit.
3., as claimed in claim 1 based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that: described LED is provided with brightness regulating switch inside having the brightness regulation shelves of bright lamp, concealed light.
4. as claimed in claim 1 based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that: described LED display is provided with fixation and recognition module, described fixation and recognition module is by the photoelectric communication device communication of transmitting terminal and described LED; Described transmitting terminal comprises the modulation module, signal conversion module and the LED light source module that comprise and connecting successively, modulation module obtains modulation signal after the identify label of LED display being modulated, described modulation signal is converted to LED dim signal by signal conversion module, after LED light source module receives described LED dim signal, with certain frequency scintillation; Flash signal is received by the PIN photodiode of described LED.
5., as claimed in claim 1 based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that: described optical fiber link, comprise signal transmitting path and Signal reception path; Described photoelectric communication device and LiFi base station, in optical communication process, use IEEE802.15.7 protocol definition physical layer and medium access control layer.
6., as claimed in claim 1 based on the LED display indoor wireless communication system of LiFi technology, it is characterized in that: described LED display is connected with host computer communication; Described communication connected mode comprises RS232 communication connected mode.
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| CN201610062012.6A CN105472779B (en) | 2016-01-29 | 2016-01-29 | LED display indoor wireless communication system based on LiFi technologies |
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| CN201610062012.6A CN105472779B (en) | 2016-01-29 | 2016-01-29 | LED display indoor wireless communication system based on LiFi technologies |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999605A (en) * | 2016-05-23 | 2016-10-12 | 苏州迈奇杰智能技术有限公司 | Intelligent prewarning device based on indoor LED visible light communication lifi technology |
| CN106060141A (en) * | 2016-06-16 | 2016-10-26 | 泉州鑫彩贸易有限公司 | City road lamp management system based on LiFi (Light Fidelity) technology |
| CN107505989A (en) * | 2017-09-24 | 2017-12-22 | 肇庆高新区长光智能技术开发有限公司 | Wireless display screen and the computer comprising wireless display screen |
| CN107682081A (en) * | 2017-09-24 | 2018-02-09 | 肇庆高新区长光智能技术开发有限公司 | A kind of wireless display method |
| CN108366282A (en) * | 2018-02-01 | 2018-08-03 | 苏州鑫凱康电子材料有限公司 | A kind of internet television convenient for lifting LIFI reception devices |
| CN108880676A (en) * | 2018-04-26 | 2018-11-23 | 苏州灵亿易电子科技有限公司 | A kind of communication system based on FPGA and ASIC |
| CN111181645A (en) * | 2020-02-01 | 2020-05-19 | 东莞智联光频科技有限公司 | LED lamp-based all-illumination integrated visible light mobile communication base station equipment |
| WO2020211773A1 (en) * | 2019-04-15 | 2020-10-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication system between electronic devices, method of communication between electronic devices, and electronic device |
| CN111970056A (en) * | 2020-08-25 | 2020-11-20 | 威海智信光电科技有限公司 | Optical communication device based on micron LED lamp and operation method |
| CN112153325A (en) * | 2019-06-28 | 2020-12-29 | Oppo广东移动通信有限公司 | Access control system, mobile terminal, access control assembly, communication method and storage medium |
| AT17120U1 (en) * | 2016-10-13 | 2021-06-15 | Zumtobel Lighting Gmbh | Lighting system with multiple lights |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716908A (en) * | 2013-12-30 | 2014-04-09 | 中国人民解放军信息工程大学 | Indoor integration network system based on visible light communication and communication access method |
| WO2014085128A1 (en) * | 2012-11-27 | 2014-06-05 | Motorola Solutions, Inc. | Visible light communications personal area network controller and access point systems and methods |
| CN203691406U (en) * | 2014-01-13 | 2014-07-02 | 刘鹏 | One-way transmission device based on LIFI light |
| CN204305258U (en) * | 2014-12-30 | 2015-04-29 | 冠捷显示科技（厦门）有限公司 | A kind of internet television based on lifi wireless telecommunications |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
-
2016
- 2016-01-29 CN CN201610062012.6A patent/CN105472779B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014085128A1 (en) * | 2012-11-27 | 2014-06-05 | Motorola Solutions, Inc. | Visible light communications personal area network controller and access point systems and methods |
| CN103716908A (en) * | 2013-12-30 | 2014-04-09 | 中国人民解放军信息工程大学 | Indoor integration network system based on visible light communication and communication access method |
| CN203691406U (en) * | 2014-01-13 | 2014-07-02 | 刘鹏 | One-way transmission device based on LIFI light |
| CN204305258U (en) * | 2014-12-30 | 2015-04-29 | 冠捷显示科技（厦门）有限公司 | A kind of internet television based on lifi wireless telecommunications |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999605A (en) * | 2016-05-23 | 2016-10-12 | 苏州迈奇杰智能技术有限公司 | Intelligent prewarning device based on indoor LED visible light communication lifi technology |
| CN106060141A (en) * | 2016-06-16 | 2016-10-26 | 泉州鑫彩贸易有限公司 | City road lamp management system based on LiFi (Light Fidelity) technology |
| AT17120U1 (en) * | 2016-10-13 | 2021-06-15 | Zumtobel Lighting Gmbh | Lighting system with multiple lights |
| CN107682081B (en) * | 2017-09-24 | 2019-07-09 | 江苏汉德森智能科技有限责任公司 | A kind of wireless display method |
| CN107682081A (en) * | 2017-09-24 | 2018-02-09 | 肇庆高新区长光智能技术开发有限公司 | A kind of wireless display method |
| CN107505989B (en) * | 2017-09-24 | 2019-10-15 | 肇庆高新区长光智能技术开发有限公司 | Wireless display screen and computer comprising wireless display screen |
| CN107505989A (en) * | 2017-09-24 | 2017-12-22 | 肇庆高新区长光智能技术开发有限公司 | Wireless display screen and the computer comprising wireless display screen |
| CN108366282A (en) * | 2018-02-01 | 2018-08-03 | 苏州鑫凱康电子材料有限公司 | A kind of internet television convenient for lifting LIFI reception devices |
| CN108880676A (en) * | 2018-04-26 | 2018-11-23 | 苏州灵亿易电子科技有限公司 | A kind of communication system based on FPGA and ASIC |
| WO2020211773A1 (en) * | 2019-04-15 | 2020-10-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication system between electronic devices, method of communication between electronic devices, and electronic device |
| CN111835416A (en) * | 2019-04-15 | 2020-10-27 | Oppo广东移动通信有限公司 | Communication system and method between electronic devices and electronic device |
| US10965374B2 (en) | 2019-04-15 | 2021-03-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication system between electronic devices, method of communication between electronic devices, and electronic device |
| CN112153325A (en) * | 2019-06-28 | 2020-12-29 | Oppo广东移动通信有限公司 | Access control system, mobile terminal, access control assembly, communication method and storage medium |
| CN111181645A (en) * | 2020-02-01 | 2020-05-19 | 东莞智联光频科技有限公司 | LED lamp-based all-illumination integrated visible light mobile communication base station equipment |
| CN111970056A (en) * | 2020-08-25 | 2020-11-20 | 威海智信光电科技有限公司 | Optical communication device based on micron LED lamp and operation method |
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